23201220203 has 8 divisors (see below), whose sum is σ = 28075426272. Its totient is φ = 18716950656.

The previous prime is 23201220191. The next prime is 23201220227. The reversal of 23201220203 is 30202210232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23201220203 - 2⁶ = 23201220139 is a prime.

It is a super-2 number, since 2×23201220203² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23201220293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97484000 + ... + 97484237.

It is an arithmetic number, because the mean of its divisors is an integer number (3509428284).

Almost surely, 2^23201220203 is an apocalyptic number.

23201220203 is a deficient number, since it is larger than the sum of its proper divisors (4874206069).

23201220203 is a wasteful number, since it uses less digits than its factorization.

23201220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194968261.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 23201220203 its reverse (30202210232), we get a palindrome (53403430435).

The spelling of 23201220203 in words is "twenty-three billion, two hundred one million, two hundred twenty thousand, two hundred three".